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A. P. HANSGOM & A. c. SPENCER.

IN$EAMTEIMMING MACHINE.

No. 520,020. Patented May 15,- 1894.

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INSEAM TRIMMING MACHINE. No. 520,020. Patented May 15, 1894.

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the inseam with a continuous shear 2 '5 N T I titres.

ATN' OFFICE.

ADELBERI PVVHANSCOM, OF WEST MEDFORD, AND ALvAn o. SPENCER,

or nosLINDALn, MASSACHUSETTS.

ihlSEA-TRIMMiNG MACHINE.

, Y BPEOIFIfiATION forming partof Letters Patent No. 520,020,dated May 1 894.

Application filed August 30.1893. Serial No. 484,384. (No model.)

1 0 all whom it may concern:

Be it known that We, ADELBERT P. HANS- COM, of W est Mediord, llill ddleser county, and ALVAH G. Srnncnn, of Roslindale, Suffolk county, State of Massachusetts, have invented andmp rovement in Inseam-Trimming Machines, of which the following description, in

connection with the accompanying drawings,

is a specification, like letters and figures on the drawings representing like parts.

This invention has for its. object the pro duction of a machine for trimming thcinseain of a boot or shoe in a rapid and eiiicient manner, the material being removed by a continuous clean, sharp shear out, instead of by a series of cutting edges acting in rapid succession-upon the work.

In accordance therewith our invention consists in the combination, with a positively rotated feed wheel, and a yielding presscr, to hold the welt thbreo'n, and a support for the shoe, of a rotating hoop knife rotating in a plane at ana'ngle to the feed wheel to trim cut,substantially as will be described. Other features of our invention willbc herematter described and particularlypointed out in the claims. 7

Figure l in side elevation represents an inseam trimming machine embodying our invention. Fig. 2 is an enlarged front view of the operative parts of the machine, with a portion of a shoe shown in section, the standard being omitted; and Fig. 3 is a sectional detail of the knife-holder and knife.

'lhe operativeyparts of the machine are mounted upon a table or base A, secured to a suitable standard A, and provided with suitable bearings A for a shaft B having thereon, usual fast and I loose pulleys B, B motion being transmitted "from said shaft by belt pulleys a and I), clearly. shown in Fig. 1. Abrac-ket or stand (3 has suitable bearings c for a knife carrying shaft 0", provided with a belt pulley 0 fast thereon and connected by belt awith the d rivingpullcy a, the shaft C" having secured thereto a knife carrier 0!, herein shown as annular in shape and cxtoriorlyshouldered at d, see Fig. 8, to receive the hoop knife D. The butt d of thehnife carrier is secured to the end of the shaft by a suitable washer to and screiv'bolt w, as best shown in Fig. 2, though any other suitable means may be employed:

We have shown the cutting knife D as hoop-shaped, the base d thereof fitting tightly around the carrier and-restingagainst the shoulder d thereof, the inner face of the knife bcingherein shown as flaring, see Fig. 3. A guard D is secured to the table A and partially surrounds the knife, to shield the hands of the operatoritherefroxn.

As will be evident the knife will make 'a clean, sharp and continuous shear cut, cutting away the surplus materialfromthe boot or shoe instead'of grindin'git oif by a series e is bolts 5, the brackets being adjusted vertically by an adjusting screw 6 extended through an ear e on said bracket and bearingagainst the foot of the stand. A short shaftfhaving on its front enda suitable feed wheel f providcd with a beveled portion 2, and on its rear end a pinion f, is extended through the upper part of the bracket, see Figs. 1 and 2, said pinion engaging an intermediate gear f loose ona'stud f secured to the bracket by bolts 6, said intermediate gear being engaged and'driven by a pinion 1, fast on ashaft g, supported in the bracket and a bearing 9 forming a part-thereof. r

We have herein shown a band pulley g ,cured to the shaft g, said pulley being connected by a suitable belt b with a pulley b fasten a shaft b supported'in a hanger or bracket b see Fig. 1, a beltb' connecting the drivingpulleyjh with pulley 11 fast on the shaft b to rotate thesamefand through the intermediate mechanism, to actuate the feed- Wheel f v The bracket 6' is provided with offset bearings h to receive a vertical rod h, to the up per end of which is pivoted a presser wheel Its, the edge h of said prchseryvhcel being oted to an ear m, the free end of the lever being connected by a link m to a'suitable treadle, not shown, whereby depression of the free end of said lever will raise the rod h v and the presser 7L2 from the feed wheel, when it is desired to put the work inplace or remove it, movement of the rod 71 .being limited by pins or projections 7, see dotted lines Fig'. 2, abutting against the bearings h. A

. roll or Wheel 91, preferably rotatable, is journaled in a stand 0t secn red to the bracket 6 to support the sole of the shoe, as shown in Fig. 2.

In the operation of the machine, rotation of the shaft B from a suitable source of power will rotate the knife carrier- (1, with the hoop knife D very rapidly in the direction of the arrow Fig. 2, the feed wheel f being rotated more slowly and toward the knife, by the mechanism described. The boot or shoe, herein shown as on a-last E, has its upper E and welt secured to the channeled lip of the inner sole S by stitches, as usual, and is placed in the machine, the presser k having first been raised to admit the welt between it andthe feed wheel f, as shown in Fig. 2, the pressure of the spring 8 thereafter keeping the presser against the welt, holding it upon the feed wheel, the edge h of the presser pressing into the rand, while the sole S rests on the support at beyond the edges to be trimmed. The boot or shoe being held firmly and controlled by the operator, the feed roll brace the rod, it below the set nuts-is pivf will fe'edit along towardari'd over'thehoop 5 knife, and the inseam-edges of the, upper,

channel lips, and edge of the welt will be cut and trimmed, with a continuous clean shear out. The amount-to be trimmed or cut off 153 adjusted by the screw e whereby the feed. wheel is raised or lowered with relation to the Our invention is not restricted to the-precise construction and'arrangement of parts as herein .slfown, as the same may "be Varied or altered without departing from the spirit of our invention;

- We claim- 1. The combination, with a positively ro tated feed wheel, a yielding presser tohold the welt thereon, and a support forthe shoe, combined with a hoop knife rotating in a plane at an angle to the feed wheel, substantially as described. w

2. The combination,.wi-th a rotating shaft, a knife carrier thereon, and a hoop knife secured thereto having a continuous edge, of a feed wheel positively rotated toward the plane of said knife,a shoe support,-and a yielding substantially as described.

presser to hold the welt upon the feed wheel,

, 3. In an inseam trimming machine, a rotatable shaft, an annular externally shouldered knife carrier fast thereon, and a hoop knife secured to said shouldered carrier and having'a continuous edge, combined with a feed wheel, a presser toco-operatetherewith, and'a support forfthe sole of the shoe, substantially as described. i

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

ADELBERT P. HANSCQM. ALVAl-l O. SPENCER; \Vitnesses: I

FREDERICK L. EMERY, JOHN C. Enwanos. 

